Analysis

  • max time kernel
    48s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2023 16:32

General

  • Target

    9e94446daa31307c1f06f8d452ace86c16c1306eb32c16a083fc30c7f1d6ccc4.exe

  • Size

    128KB

  • MD5

    b33657fd180bdaf5cd57a82c348f86ca

  • SHA1

    80b48cfab2d5df0927381c18b13a3d6c4fc55611

  • SHA256

    9e94446daa31307c1f06f8d452ace86c16c1306eb32c16a083fc30c7f1d6ccc4

  • SHA512

    8691aac89ff7c0080bce9c6c3133bc0d6cc0274daa8eb8d3427eb6929a4201d83c2108185d725183d5641c273e5992469575567a402129a4c731a078291e3a21

  • SSDEEP

    1536:uWWTwV4fVhuN3yFBm1H/1zT+yLUcAeOud1h+OhDQTcuxVQwV4MjW:2wVUPE34B4HZntAJud1h+OhMTcQqwV

Malware Config

Extracted

Family

guloader

C2

https://onedrive.live.com/download?cid=802AC8A73EEC8C8E&resid=802AC8A73EEC8C8E%21109&authkey=AHIyNVT0zJMFfdA

xor.base64

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Guloader payload 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9e94446daa31307c1f06f8d452ace86c16c1306eb32c16a083fc30c7f1d6ccc4.exe
    "C:\Users\Admin\AppData\Local\Temp\9e94446daa31307c1f06f8d452ace86c16c1306eb32c16a083fc30c7f1d6ccc4.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:1884

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1884-56-0x0000000000280000-0x000000000028C000-memory.dmp

    Filesize

    48KB

  • memory/1884-57-0x0000000077390000-0x0000000077539000-memory.dmp

    Filesize

    1.7MB